- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376564 > DAC8420QBC (ANALOG DEVICES INC) Quad 12-Bit Serial Voltage Output DAC PDF資料下載
參數(shù)資料
| 型號(hào)： | DAC8420QBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | Quad 12-Bit Serial Voltage Output DAC |
| 中文描述： | QUAD, SERIAL INPUT LOADING, 13 us SETTLING TIME, 12-BIT DAC, UUC16 |
| 封裝： | 0.119 X 0.283 INCH, DIE-16 |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大?。?/td> | 587K |
| 代理商： | DAC8420QBC |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)當(dāng)前第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
DAC8420
REV. 0
–12–
single supply operation is obtained with the output load
connected to ground, so the output stage does not have to sink
current.
Like all amplifiers, the DAC8420 output buffers do generate
voltage noise, 52 nV/
√
Hz
typically. This is easily reduced by
adding a simple RC low-pass filter on each output.
Reference Configuration
The two reference inputs of the DAC8420 allow a great deal of
flexibility in circuit design. The user must take care, however, to
observe the minimum voltage input levels on VREFHI and
VREFLO to maintain the accuracy shown in the data sheet.
These input voltages can be set anywhere across a wide range
within the supplies, but must be a minimum of 2.5 V apart in
any case. See Figure 1. A wide output voltage range can be
obtained with
±
5 V references, which can be provided by the
AD588 as shown in Figure 28. Many applications utilize the
DACs to synthesize symmetric bipolar wave forms, which
requires an accurate, low drift bipolar reference. The AD588
provides both voltages and needs no external components. Ad-
ditionally, the part is trimmed in production for 12-bit accuracy
over the full temperature range without user calibration. Per-
forming a Clear with the reset select CLSEL HIGH allows the
user to easily reset the DAC outputs to midscale, or zero volts in
these applications.
When driving the reference inputs VREFHI and VREFLO, it is
important to note that VREFHI both sinks and sources current,
and that the input currents of both are code dependent. Many
voltage reference products have limited current sinking capabil-
ity and must be buffered with an amplifier to drive VREFHI, in
order to maintain overall system accuracy. The input VREFLO,
however, has no such requirement.
–15V SUPPLY
DAC-8420
DIGITAL
CONTROL
4
9
15 16
14
12
11
10
8
2
3
6
7
1
5
DAC A
DAC B
DAC C
DAC D
VOUTA
VOUTB
VOUTC
VOUTD
DIGITAL INPUTS
GND
VREFLO
–5V
0.1μF
0.1μF
+15V SUPPLY
+5V
VREFHI
7
R5
R4
R6
6
9
R
B
R1
R2
R3
A2
A1
A3
A4
6
4
3
1
14
15
11
8
12
5
13
2
16
0.1μF
0.1μF
SYSTEM
GROUND
AD588
–15V
SUPPLY
+15V
SUPPLY
+5V
–5V
1μF
10
+V
S
–V
S
Figure 28.
±
10 V Bipolar Reference Configuration Using the AD588
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC8420FP | Quad 12-Bit Serial Voltage Output DAC |
| DAC8420FQ | Quad 12-Bit Serial Voltage Output DAC |
| DAC8420FS | Quad 12-Bit Serial Voltage Output DAC |
| DAC8420EQ | Quad 12-Bit Serial Voltage Output DAC |
| DAC8420EP | Quad 12-Bit Serial Voltage Output DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC8426 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad 8-Bit Voltage Out CMOS DAC Complete with Internal 10 V Reference |
| DAC8426AR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DAC8426AR/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Digital-to-Analog Converter |
| DAC8426AR/883C | 功能描述:數(shù)模轉(zhuǎn)換器- DAC COMPLETE QUAD 8-BIT DAC-LEV.B RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8426BR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。